【課件】Unit2Period3Discoveringusefulstructures課件高中英語(yǔ)人教版(2019)必修第二冊(cè)

Period3DiscoveringUsefulStructuresUnit2WildlifeProtectionReportanongoingeventReviewSimple（一般）Continuous（進(jìn)行）Present（現(xiàn)在）do/doesTenseis/am/aredoingPerfect（完成）Perfectcontinuous（完成）Past（過(guò)去）Future（過(guò)去）Thepastfuture（過(guò)去將來(lái)）have/hasdonehave/hasbeendoingdidwas/weredoinghaddoneHadbeendoingwill/shalldowill/shallbedoingwill/shallhavedonewill/shallhavebeendoingshould/woulddoshould/wouldbedoingshould/wouldhavedoneshould/wouldhavebeendoingReviewChangethesentencesintothepassiveform.Activevoice(主動(dòng)語(yǔ)態(tài))

Passiveform(被動(dòng)語(yǔ)態(tài))

(1)Itakeabook.(1)Thebookistakenbyme.(2)Hewaterstheflowerseveryday.(2)Theflowersarewateredbyhimeveryday.(3)Thefamersdon'tgrowapplesonthefarm.(3)Applesarenotgrownbythefarmersonthefarm.(4)Canweputourbikeshere?(4)Canourbikebeputhere?(3)Whatmeasuresarebeingtakentohelpthem?(2)Whatisbeingdonetohelpthem?(1)Africanelephantsarebeinghunted.UnderlinethepresentcontinuouspassivevoiceinthesentencesanddiscussitsfunctionLead-inHuntersarehuntingAfricanelephants.Whatarepeopledoingtohelpthem?Whatmeasuresarepeopletakingtohelpthem?Findmoresentenceswiththesameverbforminthisunit.(16Paragraph2)Theyarebeinghunted,illegally,fortheirvaluablefur.(16Paragraph7)Muchisbeingdonetoprotectwildlife.Lead-in…ExploretherulesAbasketballisbeingplayedbyMiki.Abookisbeingreadbythegirl.Ourfurisbeingused

tomakesweatersforpeoplelikeyou.小結(jié)：PresentProgressivePassiveVoice

現(xiàn)在進(jìn)行時(shí)的被動(dòng)語(yǔ)態(tài)1.定義：________________________________________________________________________________________________1.定義：________________________________________________________________________________________________表示“某人/事此時(shí)此刻正在被…”，主語(yǔ)是動(dòng)作的承受者,表示說(shuō)話時(shí)或現(xiàn)階段某個(gè)被動(dòng)的動(dòng)作正在進(jìn)行。2.結(jié)構(gòu)

1）肯定形式：am/is/are＋being＋過(guò)去分詞Thehouseisbeingpainted.2）否定形式:am/is/are＋not＋being＋過(guò)去分詞Thetreesarenotbeingwatered.3）疑問(wèn)形式:Am/Is/Are＋主語(yǔ)＋being＋過(guò)去分詞？AmIbeingwatchedover?4）特殊疑問(wèn)句的形式:把特殊疑問(wèn)詞放在一般疑問(wèn)句前面。Howmanybridgesarebeingbuiltinthevillage?1.Theplan_______________thismonth.

計(jì)劃本月正在執(zhí)行。2.Yourcomputer__________________now.現(xiàn)在沒(méi)人修理你的電腦。3.____thesefields___________thisweek？這周有人在給這些地澆水嗎？4.Where____you_______________now？

現(xiàn)在你們?cè)谀睦锝邮苊嬖?？isbeingcarriedoutisnotbeingrepairedArebeingwateredarebeinginterviewed3.主動(dòng)語(yǔ)態(tài)變被動(dòng)語(yǔ)態(tài)的原則“三變”例：Theyarebuildingnineparks.原句主語(yǔ)變?yōu)閎y短語(yǔ)賓語(yǔ)變?yōu)橹髡Z(yǔ)謂語(yǔ)由主動(dòng)變?yōu)楸粍?dòng)“三不變”原句意思不變?cè)鋾r(shí)態(tài)不變?cè)渲髦^賓以外成分不變Nineparks______________bythem.Howmanyparks____________?arebeingbuiltarebeingbuilt例：1.Mary_______________(interview)now.2.Look!Thebaby___________________(takecareof)byheraunt.3.Thedisease_____________(study)atpresentbyscientist.4.現(xiàn)在進(jìn)行時(shí)的被動(dòng)語(yǔ)態(tài)基本用法：（1）表示現(xiàn)在正在進(jìn)行的被動(dòng)動(dòng)作。isbeingtakencareofisbeingstudiedisbeinginterviewed（1）表示現(xiàn)在正在進(jìn)行的被動(dòng)動(dòng)作。例：1.今晚將要舉辦一場(chǎng)晚會(huì)。Anparty___________(held)tonight.2.下面將唱一首民歌。A

folk

song___________

(sing)next.

3.據(jù)說(shuō)下周日早上八點(diǎn)他將開(kāi)飛機(jī)去。

It

is

saidthataplane_______________(flow)

by

him

to

America

at

eight

next

Sundaymorning.

isbeingheldis

being

sungisbeing

flown（2）少數(shù)及物動(dòng)詞的進(jìn)行時(shí)表示按計(jì)劃、安排將要承受某個(gè)動(dòng)作。(3)沒(méi)有進(jìn)行時(shí)的被動(dòng)語(yǔ)態(tài)【練習(xí)】判斷正誤。小王,過(guò)來(lái),有你的電話。Xiao

Wang,

come

here.

You

are

being

wantedon

the

phone.Xiao

Wang,

come

here.

You

are

wanted

on

the

phone.

一些表示狀態(tài)、心理活動(dòng)、擁有、存在等的動(dòng)詞(和主動(dòng)語(yǔ)態(tài)一樣)一般不用進(jìn)行時(shí)被動(dòng)語(yǔ)態(tài),常用一般現(xiàn)在時(shí)被動(dòng)語(yǔ)態(tài)表示此時(shí)此刻或目前主語(yǔ)承受謂語(yǔ)動(dòng)詞的動(dòng)作。

(4)表示被動(dòng)結(jié)構(gòu)“be

+under/

in等介詞+名詞”結(jié)構(gòu)可替換進(jìn)行時(shí)被動(dòng)語(yǔ)態(tài)。

is

being

attacked例：1.目前這個(gè)城市正受到進(jìn)攻。The

city

is

under

attack

at

the

moment.

2.橋梁正在建筑中。The

bridge

is

under

construction.

is

being

constructedChoosethesuitableverbform.I’m(working/beingworked)athometodaybecausemyofficeis(painted/beingpainted).Thealarmingreportis(written/beingwritten).Itwillbefinishedsoon.Whatpartofthecityis(attacked/beingattacked)now?Rightnowthedeerare(watched/beingwatcher)overbymanyvolunteers.Whois(hunting/beinghunted)thekangaroos?Wherearethey(hunted/beinghunted)?Itisreportedthatlivingspacesforwildlifeare(reduced/beingreduced)duetothecuttingoftrees.√√√√√√√Activ.

1√ThepassageisaboutLiuTao’sconcernofthewetlandinhishometownInthewetlandofmyhometown,therearemanydifferentkindsofanimals,includingwildbirds,fish,snakes,insectsandsoon.WhenIwasinprimaryschool,Ioftenwenttherewithmyfriendstowatchthebirdsandstudythem.Thatwasaninterestingplaceforallofus.Butthingshavebeguntochangeinrecentyears.Activ.

2Activ.

2Whatishappeningtothesmallbirdsinthewetland?Whatishappeningtothewildducks?Whatishappeningtothefishandsnakes?Question&AnswerLiuTao’sconcernaboutwetlandsinhishometown.Smallbirds__________________(catch)withnets.arebeingcaughtWildducks_______________(sell)atfoodmarkets.arebeingsoldFishandsnakes______________(kill)forfoodinrestaurants.arebeingkilledActiv.

2Whatishappeningtothewetland?Whatdoyouthinkshouldbedonetoprotectthewetland?Thewetland___________________(destroy).Someparts_________________(cover)withnewhouse.Youcanseerubbisheverywhere.Thewetland_________________(pollute)seriouslyeveryday.arebeingdestroyedarebeingcoveredisbeingpollutedQuestion&AnswerProductionIngroups,discussthequestionsbelow.Preparetogiveapresentationofyourideastotheclass.1.Whatdoyouknowisbeingdoneinyourneighbourhoodtoprotectanimalsandplants?2.Whatsuggestionsdoyouhave?UsefulExpressions:...is(are)beingprotected.Itisgoodfor...It'sawonderfulhabitatfor...Itmakesourenvironmentmore...SampleConversationA:Whatisbeingdoneinourneighbourhoodtoprotectanimalsandplants?B:Well,theoldtreesintheparkarebeingprotected.A:Ohyes.Theyarebeingprotectednotonlybecausetheyareveryoldbutalsobecausetheyarethenaturalhabitatforsongbirds.D:Yes,thatwouldcertainlyhelpmaketheaircleanerforthem.C:That'sright.Perhapstheycouldhelpprotectthebirdsbymakingtheroadsaroundtheparkfreefromcars.1.現(xiàn)在進(jìn)行時(shí)的被動(dòng)語(yǔ)態(tài)的基本結(jié)構(gòu)肯定結(jié)構(gòu)be(am/is/are)beingdone否定結(jié)構(gòu)be(am/is/are)+not+beingdone一般疑問(wèn)結(jié)構(gòu)be(am/is/are)+主語(yǔ)+beingdone特殊疑問(wèn)結(jié)構(gòu)特殊疑問(wèn)詞+be(am/is/are)+主語(yǔ)+beingdoneSummary（1）表示現(xiàn)在正在進(jìn)行的被動(dòng)動(dòng)作。（2）少數(shù)及物動(dòng)詞的進(jìn)行時(shí)表示按計(jì)劃、安排將要承受某個(gè)動(dòng)作。(3)沒(méi)有進(jìn)行時(shí)的被動(dòng)語(yǔ)態(tài)(4)表示被動(dòng)結(jié)構(gòu)“be

+under/

in等介詞+名詞”結(jié)構(gòu)可替換進(jìn)行時(shí)被動(dòng)語(yǔ)態(tài)。2.現(xiàn)在進(jìn)行時(shí)的被動(dòng)語(yǔ)態(tài)的基本用法deern.鹿(pl.deer)Ananimalwithlonglegs,thateatsgrass,leaves,etc.andcanrunfast.Therearemanytypesofdeer.Examplesentences：Ifwearehunted,manydeerwillbehurteachday.Huntsmenchasedthedeersilently.Newwordsadeerpark

鹿苑aherdofdeer一群鹿kangaroon.袋鼠(pl.-oos)AlargeAustraliananimalwithastrongtailandbacklegs,thatmovesbyjumping.Thefemalecarriesitsyounginapocketofskin(calledapouch)onthefrontofitsbody.Examplesentences：Kidslovestufflikeexploringcavesorkangarooparks.Kangarooattacksarerelativelyrare.Newwordsreducevt.減少Tomakesthlessorsmallerinsize,quantity,price,etc.Examplesentences：Oilisputinmachinerytoreducethefriction.Reducewhatyouneedtodo.Newwordsreducewaste減少浪費(fèi),減少?gòu)U棄物reduceexpenditure減少開(kāi)支dueadj.dueto

adv.由于；因?yàn)镋xamplesentences：Wedigahole,whichisnoteasy,duetoroots.Thatwasmadeintoanofficeduetoitssmallsize.Newwo